Larry: I have the manual that came with my Ten Tec 938, TPS 11. It has a schematic, too. If you still need it I will mail you a copy. 73, Bob WB2VUF _______________________________________________ Te
Luca: Just turn down the monitor control on the back panel. This is a voice sidetone for checking the speech processor, but it isn't particularly useful. 73, Bob WB2VUF ______________________________
You're right, Clark, noise blankers represent tradeoffs. For example: My Corsair: no distortion, but limited noise blanking ability. Paragon: great blanking, but introduces distortion, typically key
I'm thinking the same thing. I have a Drake tuner with an antenna switch to select between 2 antennas, and a separate switch to select among the Ten-Tec and Heath rigs, but it would be nice to put 2
Paul: Try Davis RF http//www.davisrf.com Bob WB2VUF _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
Ed: Try different values for the temperature compensating capacitor. This is selected at the factory, but you may get better results from another value. Only trouble is, N750 caps are hard to find, b
Ed: That's excellent, very low drift. Hardened PTO grease usually causes frequency jumping, not warm-up drift. I had it really bad with my Corsair, until I rebuilt the PTO. The components were not re
Phil: Yes, I did such a mod and wrote it up. It should be in the archive, but I can send you the instructions. 73, Bob WB2VUF _______________________________________________ TenTec mailing list TenTe
TEST VVV VVV VVV DE WB2VUF _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
I use FSK with my Paragon and a Kantronics KAM. It works fine. To go to the RTTY mode, press SHIFT then CW. This should give the proper offsets. I run with the PBT centered with all filters except th
As I recall, all Ten Tec low power tuners were "T" networks. I recently built a small "L" network using the variable inductor that T-T used in their low power tuners. They used to sell the inductor a
I have heard of this mod but I have not seen it. Where can I get a copy? Thanks. Bob WB2VUF _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.cont
Don: I'm curious. Where in the circuit did they add the capacitor and what was the value of the cap? I might be similar to the capacitor that I added to my 1220 to cure the excessive CTCSS tone level
Don: Thanks. Yes, I know what that is for. Without it when you work a repeater, sometimes on returning form transmit back to receive, the receive frequency jumps to the transmit frequency. As I recal
Mike: One of the boards, the one with the display, lifts out, but you have to remove the front panel and pull it forward to gain enough clearance to remove the boards. To get the front panel off, rem
Oh, by the way, to clean out the meter, cut a sliver of double-sticky-sided Scotch tape, hold it with a tweezer, and carefully insert it into the meter armature. The sticky tape will pick up any fore
I would like to improve the SSB/CW selectivity of my 1254 receiver. 455 kHz filters narrower than 4 kHz are very expensive. I thought of trying to make a filter out of 455 kHz ceramic resonators, but
Yes, the 1254 provides a great foundation for modification or experimentation. I put an RCA jack on the rear panel for muting the receiver, but I have not yet tried it with a transmitter. I might mod
Lee: Yes, that is another option. The AGC is not audio derived, but an audio filter would work fine. There are lots of active filter designs around. I was thinking about the Idiom Press SCAF filter.
That's exactly what I was doing today: looking at the QF-1 schematic to see if it could be done with FET's. That Q-multiplier from the 1958 Handbook sounds like the same one that I built from the 196